Restricted Hours Noise Monitoring Results -- Night time

Station M3, Kwa Yick Building

Date

Start Time

End Time

Weather

Noise level (dB(A)), 15 min

Major Construction Noise Source(s) Observed

Other Noise Source(s) Observed

Remarks

Temp. (°C)

Wind Speed (m/s)

Noise Meter Model / ID

Calibrator Model / ID

Leq

L10

L90

15-Sep-11

00:40

00:55

Fine

64

66

61

No outdoor construction noise

Mainly traffic noise

N.A

31

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

28-Sep-11

00:44

00:59

Fine

62

64

61

No outdoor construction noise

Mainly traffic noise

N.A

29

0.5

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

Min.

62

Max.

64

[1] The monitoring data on 14 and 27 September morning are for the restricted hour of previous day (15 and 28 September respectively)